#include <iostream>
using namespace std;


double divsion(int a, int b){
    if(b == 0){
        throw "zero";
    }
    return a / b;
}


void test0(){
    try{
        cout << divsion(100, 0);
    }catch(const std::exception& e){
        std::cerr << e.what() << '\n';
    }

    

}

int main(void){
    test0();
}